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Solar PV Performance Thread - Post your monthly output

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Comments

  • #362
    mp3guy
    Registered Users Posts: 3,954 ✭✭✭mp3guy


    graememk wrote: »
    Most people don't have an array the size you have.. so batteries rarely last that long anyway. So if you can save some for the morning.

    Yeah if you carry over a bit to the next day usually won't be the worst in the world to ride out the morning.

    But if your finding your carrying over too much, maybe knock it off in the summer,

    But you really don't want to be putting your valuable battery power into a EV,

    On a good day (only since installation last month mind you) my battery is full by 12:30pm but dead by 10pm, those electric kitchen appliances take a toll.

    What do you mean by battery power into EV?


  • #363
    championc
    Registered Users Posts: 6,054 ✭✭✭championc


    mp3guy wrote: »
    What do you mean by battery power into EV?

    You don't want to be charging an EV up during the day or night, with the power coming from your batteries - you only want it coming from the grid.

    So take care in summer to to charge your batteries with ZERO watts at night to avoid discharging at the same time - if you plan to charge your EV


  • #364
    mp3guy
    Registered Users Posts: 3,954 ✭✭✭mp3guy


    championc wrote: »
    You don't want to be charging an EV up during the day or night, with the power coming from your batteries - you only want it coming from the grid.

    So take care in summer to to charge your batteries with ZERO watts at night to avoid discharging at the same time - if you plan to charge your EV

    Oh. I just press a button in an app to disable battery discharge for the period I'm charging the EV, inverter supports it.


  • #365
    unkel
    Registered Users Posts: 64,703 ✭✭✭✭unkel


    We might as well close this thread until the new year :p


  • #366
    MAULBROOK
    Registered Users Posts: 1,470 ✭✭✭MAULBROOK


    What a cracking day for December.
    9.6kw so far, might hit 10kw. Not bad at all.
    99.9kw for the month so far.


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  • #367
    Gumbo
    Moderators, Society & Culture Moderators Posts: 38,359 Mod ✭✭✭✭Gumbo


    20.12.2020

    Total energy consumed : 16.5 kWh
    Total energy generated: 7.6 kWh

    44% of my use for the day was solar generated.


  • #368
    garo
    Registered Users Posts: 1,874 ✭✭✭garo


    Think about us E/W saddos. 2kWh.


  • #369
    DrPhilG
    Registered Users Posts: 12,187 ✭✭✭✭DrPhilG


    https://touch.boards.ie/thread/2058103000/15/#post115564249


  • #370
    slave1
    Moderators, Sports Moderators Posts: 18,651 Mod ✭✭✭✭slave1


    garo wrote: »
    Think about us E/W saddos. 2kWh.

    Hear ya bro

    Myenergi Eddi For Sale in Athlone, Westmeath from slave1 (adverts.ie)



  • #371
    unkel
    Registered Users Posts: 64,703 ✭✭✭✭unkel


    E/W FTW. Might not look the best at the moment, but over the whole year, you guys come out winners. Even if we do get a FIT.


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  • #372
    garo
    Registered Users Posts: 1,874 ✭✭✭garo


    Self consumption yes but not total output. But I take your point. We sacrifice production for 4 months to get production better matched to consumption for 8 months.


  • #373
    unkel
    Registered Users Posts: 64,703 ✭✭✭✭unkel


    garo wrote: »
    We sacrifice production for 4 months to get production better matched to consumption for 8 months.

    There isn't an awful lot of production to sacrifice in those 4 months :p

    Mind, whenever the sun is out in full, I still get about 1.5kW, but only really between 11AM and 2PM


  • #374
    garo
    Registered Users Posts: 1,874 ✭✭✭garo


    True but a south facing panels produces more in the summer too.


  • #375
    MAULBROOK
    Registered Users Posts: 1,470 ✭✭✭MAULBROOK


    South East direction in north Wexford.
    6.2kw Solar
    5kw Solis inverter
    7kw BYD Battery

    December Total 154.3kw
    Best day, Dec 6th 11.3kw
    Worst Day Dec 18th 0.8kw.
    Exported 2kw
    Imported 266.8kw
    Monthly self use 77.84%

    Happy New Year everyone and best of luck for 2021.


  • #376
    reklamos
    Registered Users Posts: 793 ✭✭✭reklamos


    South 4.5kW PV, 10kWh battery

    Total generated 114kW
    Best day, 12th 10.8kW
    Worst day, 21st 0.1kW.
    Exported 0kW
    Imported 430kW
    Monthly self use 67%

    Happy New Year


  • #377
    denismc
    Registered Users Posts: 1,382 ✭✭✭denismc


    Dec 2020 88kWh from 2.08 kW panels, 20 kW more than last December.

    Total for the year 2125kWh which is 65 more than last year!


  • #378
    Gary kk
    Registered Users Posts: 675 ✭✭✭Gary kk


    Hey guys would putting panels on roof with sides facing east and west be a waste of time?


  • #379
    MAULBROOK
    Registered Users Posts: 1,470 ✭✭✭MAULBROOK


    Gary kk wrote: »
    Hey guys would putting panels on roof with sides facing east and west be a waste of time?

    Nothing wrong with that at all.


  • #380
    mp3guy
    Registered Users Posts: 3,954 ✭✭✭mp3guy


    10.24kWp array, 5.76kWp SSW, 4.48kWp ESE both 45 degree pitch in Cork.

    South: 243.60kWh
    East: 109.21kWh
    PV Total: 352.81kWh
    Best Day: 4th (22.95kWh)
    Worst Day: 9th (1.34kWh)

    Grid Import: 615.47kWh
    Grid Export: 30.21kWh

    House Usage: 772.22kWh
    Car Usage: 140.73kWh
    Water Usage: 25.12kWh

    Interestingly my day/night split for energy usage went from 1/3 at night rate (before I got solar) to 3/4 at night rate since I also switched to night rate battery charging the night before low solar forecast days.


  • #381
    gman2k
    Registered Users Posts: 4,076 ✭✭✭gman2k


    Gary kk wrote: »
    Hey guys would putting panels on roof with sides facing east and west be a waste of time?

    For self use of the electricity generated, it's often the best setup.


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  • #382
    mun1
    Registered Users Posts: 826 ✭✭✭mun1


    December 2020
    3.7kw PV array

    December generated 88 kwhr.

    Total generated since mid april 2020 2.53 MWh


  • #383
    bod71
    Registered Users Posts: 156 ✭✭bod71


    bod71 wrote: »
    Nov gen.74kwh. Low sun shade on SE string, NW string getting v little sun.

    Dec Gen. 46kwh.


  • #384
    garo
    Registered Users Posts: 1,874 ✭✭✭garo


    garo wrote: »
    4.8 kWp E/W. 2.4kWh battery. 24 degree slope.
    November(kWh):
    Production: 92.8 (100 predicted)
    Consumption: 702
    Import: 636 (289d, 347n) 60kWh night rate charging.
    Export: 3 (3 pred.)

    Best day: 3rd: 6.7
    Worst day: 24th: 0.8


    4.8 kWp E/W. 2.4kWh battery. 24 degree slope.
    December(kWh):
    Production: 55.2 (61.4 predicted)
    Consumption: 744
    Import: 714 (324d, 390n)
    Export: 0 (0 pred.)

    Best day: 14th: 2.8
    Worst day: 23rd: 0.6


  • #385
    graememk
    Moderators, Home & Garden Moderators Posts: 5,758 Mod ✭✭✭✭graememk


    graememk wrote: »
    Prediction for Dec : Website :52 kWh, but Id say it would be more like 40.

    5.6kwp, SE, No battery, HW divert, Donegal Low angle (15 degrees), Have Some shading in the low sun - Panels are shaded until at least noon now in dec.

    -This has been my Dad's Array, Mines going up in January, 7.2kWp (20 panels) on a 6kwp inverter, Solartricity wouldn't warranty a 8.6kWp array. (24 panels)

    Also will have 10kwh of BYO battery storage attached to it.. Currently fine tuning the settings on that now, Charging on Night rate, discharging during the day. Just waiting on a spell of dry weather to get on the roof safely.

    Quite close to the Prediction though.

    Generation : 49.6kWh
    Solar Use(ex divert) :39.2kWh (79%)
    Divert : 4.2 kWh (22%)
    Export :6 kWh

    website Prediction for Jan : 73kwh, But id still think it will be in the 60's due to shading.


  • #386
    Geeyfds53573
    Registered Users Posts: 427 ✭✭Geeyfds53573


    bod71 wrote: »
    Dec Gen. 46kwh.

    Do you know the degrees SE and NW your facing?
    Slope of roof? Any shading?


  • #387
    bod71
    Registered Users Posts: 156 ✭✭bod71


    Geeyfds53573 wrote: »
    Do you know the degrees SE and NW your facing?
    Slope of roof? Any shading?

    Around 130- 310 degrees. 35 slope, shading from tree on SE panels from Oct.


  • #388
    DrPhilG
    Registered Users Posts: 12,187 ✭✭✭✭DrPhilG


    DrPhilG wrote: »
    November Stats
    6.2kWp (2.8 south/3.4 west), 4.8kWh battery, Zappi & Eddi – Donegal

    Generation – 106.4kWh
    Export – 0.6kWh
    Import – 520.4kWh

    December Stats
    6.2kWp (2.8 south/3.4 west), 4.8kWh battery, Zappi & Eddi – Donegal

    Generation – 68.3kWh
    Export – 0.3kWh
    Import – 855.4kWh

    Best day - 6th, 5.9kWh
    Worst day - 26th/28th, 0.5kWh


    Totals so far:
    August - 572.1kWh
    September - 437.2kWh
    October - 254.3kWh
    November - 106.4kWh
    December - 68.3kWh


  • #389
    irishchris
    Registered Users Posts: 3,168 ✭✭✭irishchris


    2.88kwp South West facing

    December gen: 70kwh. 3kwh short of November but with 24 power cut during recent storm so not far off.

    Only installed in October
    Oct:152.5 kwh
    Nov:73.8 kwh
    Dec:70 kwh

    Looking forward to heading towards spring and seeing longer days


  • #390
    handpref
    Registered Users Posts: 593 ✭✭✭handpref


    5.4kwp System

    East - West Split

    Total for December 19.90 kw’s


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  • #391
    Mickeroo
    Administrators, Computer Games Moderators, Sports Moderators Posts: 32,127 Admin ✭✭✭✭✭Mickeroo


    Mickeroo wrote: »
    July: 191.7kWh (logging only started on the 17th)
    August: 397.8kWh
    September: 299.1kWh
    October: 226.1kWh
    November: 72.5kWh (Ouch!)

    December: 66.9kWh

    3.7kWp S/SW facing


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